/**
 * Copyright (C) 2012 Moxie Marlinspike
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.appspot.eusms.database.model;

import android.content.Context;
import android.text.SpannableString;

import com.appspot.eusms.database.MmsSmsColumns;
import com.appspot.eusms.database.SmsDatabase;
import com.appspot.eusms.protocol.Tag;
import com.appspot.eusms.recipients.Recipient;
import com.appspot.eusms.recipients.Recipients;

import com.appspot.eusms.R;

/**
 * The message record model which represents standard SMS messages.
 *
 * @author Moxie Marlinspike
 */

public class SmsMessageRecord extends MessageRecord {

    public SmsMessageRecord(Context context, long id,
                            Body body, Recipients recipients,
                            Recipient individualRecipient,
                            int recipientDeviceId,
                            long dateSent, long dateReceived,
                            long type, long threadId,
                            int status) {
        super(context, id, body, recipients, individualRecipient, recipientDeviceId,
                dateSent, dateReceived, threadId, getGenericDeliveryStatus(status), type);
    }

    public long getType() {
        return type;
    }

    @Override
    public SpannableString getDisplayBody() {
        if (isProcessedKeyExchange()) {
            return new SpannableString("");
        } else if (isStaleKeyExchange()) {
            return emphasisAdded(context.getString(R.string.ConversationItem_error_received_stale_key_exchange_message));
        } else if (isCorruptedKeyExchange()) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_received_corrupted_key_exchange_message));
        } else if (isInvalidVersionKeyExchange()) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_received_key_exchange_message_for_invalid_protocol_version));
        } else if (MmsSmsColumns.Types.isLegacyType(type)) {
            return emphasisAdded(context.getString(R.string.MessageRecord_message_encrypted_with_a_legacy_protocol_version_that_is_no_longer_supported));
        } else if (isBundleKeyExchange()) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_received_message_with_unknown_identity_key_click_to_process));
        } else if (isIdentityUpdate()) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_received_updated_but_unknown_identity_information));
        } else if (isKeyExchange() && isOutgoing()) {
            return new SpannableString("");
        } else if (isKeyExchange() && !isOutgoing()) {
            return emphasisAdded(context.getString(R.string.ConversationItem_received_key_exchange_message_click_to_process));
        } else if (SmsDatabase.Types.isFailedDecryptType(type)) {
            return emphasisAdded(context.getString(R.string.MessageDisplayHelper_bad_encrypted_message));
        } else if (SmsDatabase.Types.isDuplicateMessageType(type)) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_duplicate_message));
        } else if (SmsDatabase.Types.isDecryptInProgressType(type)) {
            return emphasisAdded(context.getString(R.string.MessageDisplayHelper_decrypting_please_wait));
        } else if (SmsDatabase.Types.isNoRemoteSessionType(type)) {
            return emphasisAdded(context.getString(R.string.MessageDisplayHelper_message_encrypted_for_non_existing_session));
        } else if (!getBody().isPlaintext()) {
            return emphasisAdded(context.getString(R.string.MessageNotifier_encrypted_message));
        } else if (SmsDatabase.Types.isEndSessionType(type)) {
            return emphasisAdded(context.getString(R.string.SmsMessageRecord_secure_session_ended));
        } else if (isOutgoing() && Tag.isTagged(getBody().getBody())) {
            return new SpannableString(Tag.stripTag(getBody().getBody()));
        } else {
            return super.getDisplayBody();
        }
    }

    @Override
    public boolean isMms() {
        return false;
    }

    private static int getGenericDeliveryStatus(int status) {
        if (status == SmsDatabase.Status.STATUS_NONE) {
            return MessageRecord.DELIVERY_STATUS_NONE;
        } else if (status >= SmsDatabase.Status.STATUS_FAILED) {
            return MessageRecord.DELIVERY_STATUS_FAILED;
        } else if (status >= SmsDatabase.Status.STATUS_PENDING) {
            return MessageRecord.DELIVERY_STATUS_PENDING;
        } else {
            return MessageRecord.DELIVERY_STATUS_RECEIVED;
        }
    }
}
